david1234
2021-05-04 03:41:00
Diana invested $3000 in a savings account for 3 years. She earned$450 in interest over that time period. What interest rate did she earn? Use the formula I=Prt to find your answer, where I is interest, P is principal, r is rate and t is time. Enter your solution in decimal form rounded to the nearest hundredth. For example, if your solution is 12%, you would enter 0.12.
$I=prt\(450)=(3000)r(3)\frac{450}{9000}=frac{9000r}{9000}\0.05=r$ r=0.05